日期类实现Date.cpp

//---------------------------------- // date.cpp //---------------------------------- #include<iostream> #include<iomanip> #include"date.h" using namespace std; void Date::set(int y,int m,int d) { year = y; month = m; day = d; } void Date::print() const { cout << setfill('0') ; cout << setw(4) << year << '/' << setw(2) << month << '/' << setw(2) << day << '\n'; cout << setfill(' '); } bool Date::isLeapYear() const { return (year%4==0 && year%100!=0)||(year%400==0) ; } Date& operator++(Date& d) { switch(d.month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: { if(d.day == 31) { d.month ++; d.day = (d.day+1)%31; } else d.day ++; }break; case 2: { if(d.isLeapYear()) { if(d.day == 29) { d.month ++; d.day = (d.day+1)%29; } else d.day ++; } else { if(d.day == 28) { d.month ++; d.day = (d.day+1)%28; } else d.day++; } }break; case 4: case 6: case 9: case 11: { if(d.day == 30) { d.month ++; d.day = (d.day+1)%30; } else d.day++; }break; } return d; }